Hydac SK Series, Руководство по эксплуатации

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GB
42
INT 3.301.BA4/05.16
1. General information
Piston accumulators are pressure vessels
(hydraulic accumulators) with a nitrogen filling
that is separated from the operating medium by
a piston. They are intended for use in hydraulic
installations and are exclusively designed to
store and then discharge pressure fluids.
Hydraulic accumulators are dimensioned,
designed, manufactured and placed on the
market on the basis of national and
international regulations. The national
regulations that apply at the place of installation
must be observed for initial start-up and
operation.
The owner is responsible for the hydraulic
accumulator being used as intended and for
these regulations being complied with. The
documentation supplied with the hydraulic
accumulator must be kept in a safe place for
the installation inspection and any periodic
inspections.
Detailed assembly and repair instructions are
available for work which may be carried out on
the piston accumulator after installation and
initial start-up, e.g. repair work. These are
available on request.
NOTE
All work on HYDAC piston accumulators must
only be carried out by suitably trained staff.
Incorrect installation or handling can lead to
serious accidents.
Gases under pressure.
After discharging and/or completely draining
the hydraulic accumulator (e.g. to depressurise
the hydraulic system before work is carried
out), the accumulator can build up an amount
of pressure again if the lines are later shut off
on the fluid side.
This behaviour must be taken into account
generally, and in particular before working on
hydraulic systems with hydraulic accumulators
connected.
All fluid sides of lines of connected hydraulic
accumulators must therefore be depressurised
and then remain open.
Only then may the accumulator be removed
from the hydraulic system.
Before working on the accumulator itself, the
gas side of the accumulator must be
depressurised and remain open. Ensure that
the gas side is depressurised.
Only then may the appropriate work (e.g.
disassembly of the accumulator) be carried out.
On no account must any welding, soldering or
mechanical work be carried out on the piston
accumulator.
Hydraulic accumulators must only
be charged with nitrogen. Never
use oxygen or air
Risk of explosion !
Danger of bursting and loss of
operating permission if machining
and/or welding/soldering
operations are carried out!
WARNING
The accumulator shell can become hot.
Risk of burns.
DANGER
The accumulator may become electrically charged.
Risk of sparking.
NOTE
If translated, the only valid text is that of the
original German operating instructions.